Home / 194,763.72-291,969.24-76,403.28

Finding the Fourth Proportional to 194,763.72, 291,969.24 and 76,403.28

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Solution

The fourth proportional to 194,763.72, 291,969.24 and 76,403.28 is: 114,535.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,763.72 : 291,969.24 = 76,403.28 : x
  2. Step 2: Convert to fraction form
    194,763.72/291,969.24 = 76,403.28/x
  3. Step 3: Cross multiply
    194,763.72x = 291,969.24 × 76,403.28
  4. Step 4: Simplify right side
    194,763.72x = 22,307,406,135.26
  5. Step 5: Solve for x
    x = 22,307,406,135.26/194,763.72
  6. Step 6: Final answer
    x = 114,535.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.